Quasi-peak value

One method for detecting waveforms such as noise. Quasi-peak detection is a method that detects a value intermediate between peak detection, which detects the height of the waveform peak by setting the discharge time constant of the detector sufficiently larger than the charge time constant, and average detection, which detects the average value of the waveform. In quasi-peak detection, the time constants are normally specified in CISPR16. Peak detection has the characteristic that the measurement result becomes higher when the duration of the noise is long and when its frequency is high. Therefore, it is effective for capturing the perceptual scale of noise. Quasi-peak detection is also effective as a method for reducing peak value errors caused by response time when measuring highly impulsive noise with a meter-type measuring instrument.